Method for leaching sulfide-containing materials with microorganisms and use of sulphur-containing amino acids in leaching with microorganisms
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United States of America Patent
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Jul 27, 2004
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N/A
app pub date -
Apr 13, 2001
filing date -
Jul 30, 1998
priority date (Note) -
Expired
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Abstract
The invention relates to an effective and environmentally safe process for the microbial leaching of sulfidic materials, particularly of sulfide ores such as pyrite, marcasite, chalcopyrite, bornite, or covelline, which process is characterized in that the aqueous leaching fluid is added with sulfur-containing amino acids or derivatives thereof. The invention is also directed to the use of sulfur-containing amino acids or derivatives thereof in the microbial leaching of sulfidic materials, particularly in pyrite leaching.
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